Title:
WASTE-HEAT RECOVERY SYSTEM MATCHING HISMELT SMELTING REDUCTION IRONMAKING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/173902
Kind Code:
A1
Abstract:
Disclosed in the present invention is a waste-heat recovery system matching a HIsmelt smelting reduction ironmaking system, the waste-heat recovery system comprising: a cooling flue and a flue steam drum, wherein an outlet end of the cooling flue is provided with a connection flue, an outlet of the connection flue is connected to a separator, an inlet section of the cooling flue is connected to a reaction furnace, and a cooling medium is introduced into the connection flue to cool flue gas; and a flue gas outlet of the separator is connected to a steam superheater, a superheater flue gas outlet of the steam superheater is connected to a fire-tube boiler, a boiler ascending tube and a boiler descending tube of the fire-tube boiler are connected to a boiler steam drum, the fire-tube boiler is connected to a fire-tube economizer, a flue gas discharge cylinder body is arranged at the bottom of the fire-tube economizer, an economizer water output tube on the fire-tube economizer supplies water to the fire-tube boiler steam drum and the flue steam drum, and steam output by the flue steam drum and the fire-tube boiler steam drum is conveyed to the steam superheater, and the steam superheater is provided with a superheated steam output tube. The present invention can effectively prevent a slagging phenomenon and significantly improve thermal efficiency.
Inventors:
QIAN FEIZHOU (CN)
ZHU HONG (CN)
WEI ZHAOQIANG (CN)
ZHU HONG (CN)
WEI ZHAOQIANG (CN)
Application Number:
PCT/CN2022/143823
Publication Date:
September 21, 2023
Filing Date:
December 30, 2022
Export Citation:
Assignee:
SUZHOU HAILU HEAVY IND CO LTD (CN)
SUZHOU HAILU ENERGY SAVING&ENVIROMENTAL PROTECTION TECH RESEARCH INSTITUTE CO LTD (CN)
SUZHOU HAILU ENERGY SAVING&ENVIROMENTAL PROTECTION TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
F27D17/00; C21B13/00
Foreign References:
| CN114636316A | 2022-06-17 | |||
| CN103773912A | 2014-05-07 | |||
| CN212272326U | 2021-01-01 | |||
| CN214038332U | 2021-08-24 | |||
| US4506631A | 1985-03-26 |
Attorney, Agent or Firm:
NANJING SUKE PATENT AGENT LIMITED LIABILITY COMPANY (CN)
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